You may be able to get PCIe 4.0 on these ASUS X470 and B450 boards - HardwareZone.com.sg
Gigabyte Adds Support For PCIe 4.0 in Some x470 And B450 boards Through Latest Bios - Appuals.com
B450 vs X470 vs X570 performance for Ryzen 7 3700X & Ryzen 9 3900X - Not much difference, even with PCIe 4.0 NVMe inc X370 %page%
Final nail in coffin for PCIe 4.0 on pre-X570 motherboards | A1 Electronics
AMD clarifies once again that B450 and X470 motherboards will not support PCI-E 4.0
AMD has decided to block PCIe 4.0 support on all pre-X570 motherboards | PC Gamer
Biostar provides PCIe 4.0 support on four X470 and B450 motherboards
Unofficial AMD X570 Platform Details & Diagram Emerge
AMD x470 vs x570 Chipset - Differences And Which One Is The Best
These ASUS X470 And B450 Boards Support PCIe 4.0! – Pokde.Net
These ASUS X470 And B450 Boards Support PCIe 4.0! – Pokde.Net
BIOS Update Enables PCIe 4 On AMD X470 Boards With Ryzen 3000
ASUS Brings PCIe 4.0 Support to Select X470 and B450 Boards - The FPS Review
X470 Crosshair VII seems to have PCI-E Gen 4 : r/Amd
Gigabyte's removed PCIe 4.0 support from their 300/400 series AM4 motherboards | OC3D News
ASUS starts removing PCIe 4.0 support from pre-X570 AM4 motherboards | OC3D News
Some ASUS X470 and B450 Motherboards Support PCIe 4.0 | eTeknix
PCIe 4.0 support for selected X470 and B450 Asus boards? | TechPowerUp Forums
AMD X470 Current Gen Motherboards Might Get PCIe 4.0 Upgrade With Ryzen 3000 CPUs | Technology News
CPU-Z reports PCI Express 4, but I only have 3? | MSI Global English Forum - Index
Gigabyte removes PCIe 4.0 support on all AMD motherboards that are not X570
Asus B450 and X470 Motherboards That Support PCIe 4.0 (Updated) | Tom's Hardware
Gigabyte enables the PCIe 4.0 interface on the main modules X470 and B450
GIGABYTE AM4 Motherboards: PCIe 4.0 Ready for Ryzen 3000
X470 PCIe 2.0 x8 ?? - CPUs, Motherboards, and Memory - Linus Tech Tips
Ryzen 3000: Asus opens up PCIe 4.0 support for selected X470 and B450 boards
